May 23, 2010 — Carefully, the Chinese ivory dealer pulled out an elephant tusk cloaked in bubble wrap and hidden in a bag of flour. Its price: $17,000.

“Do you have any idea how many years I could get locked away in prison for having this?” said the dealer, a short man in his 40s, who gave his name as Chen.

A surge in demand for ivory in Asia is fuelling an illicit trade in elephant tusks, especially from Africa. Over the past eight years, the price of ivory has gone up from about $100 per kilogram ($100 per 2.2 pounds) to $1,800, creating a lucrative black market.